Answer:
x=4.833
Explanation:
VH+HS=VS
VH=2x-7
VS=8x-11
HS=25
2x-7+25=8x-11
2x-2x-7+25=8x-2x-11
18=6x-11
18+11=6x-11+11
6x=29
4.5m questions
5.7m answers